Physics Exam Past Questions and Answers | JAMB, WAEC and NECO

Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.

• Question 931: A stone is dropped from the top of a tower of height 11 .25m. Calculate the time it will take to reach the ground. [g = 10ms-2] Options:
  A) 1.00s
  B) 1.50s
  C) 2.25s
  D) 2.50s
  E) 3.00s
  Show Answer
  The correct answer is B .
• Question 932: A perfect emitter or absorber of radiant energy is a Options:
  A) conductor
  B) black body
  C) white body
  D) red body
  Show Answer
  The correct answer is B .
• Question 933: The inability of the eye to focus near objects is known as Options:
  A) astigmatism
  B) eye ring
  C) hypermetropia
  D) myopia
  E) presbyopia
  Show Answer
  The correct answer is C .
• Question 934: A particle in circular motion performs 30 oscillation in 6 seconds. Its angular velocity is Options:
  A) 5 rad s^-1
  B) 6 rad s^-1
  C) 5π rad s^-1
  D) 10π rad s^-1
  Show Answer
  The correct answer is D .
• Question 935: A semiconductor diode is used in rectifying alternating current into direct current mainly because it Options:
  A) allows current to flow in either direction
  B) is non-linear
  C) offers a high input resistance
  D) allows current to flow only in one direction
  Show Answer
  The correct answer is D .
• Question 936: A wheel and axle is used to raise a load of 500 N by the application of an effort of 250 N. If the radii of the wheel and the axle are 0.4 cm and 0.1 cm respectively, the efficiency of the machine is Options:
  A) 20 %
  B) 40 %
  C) 50 %
  D) 60 %
  Show Answer
  The correct answer is C .
• Question 937: When impurities are added to semi-conductors, the conductivity of the semi-conductor Options:
  A) increases then decreases
  B) increases
  C) decreases
  D) remains constant
  Show Answer
  The correct answer is B .
• Question 938: Which is the incorrect formula for a body accelerating uniformly? Options:
  A) a = v² − u$\frac{2}{2}$
  B) v² = u² + 2as
  C) s = $\frac{1}{2}$ut + at²
  D) v² − u²= 2as
  Show Answer
  The correct answer is C .
• Question 939: The equation P^aV^bT^c= constant reduces to Charles Law if Options:
  A) a=1, b=1and c=0
  B) a=1, b=0 and c=-1
  C) a=0, b=1 and c=1
  D) a=0, b=1 and c=-1
  Show Answer
  The correct answer is D .
• Question 940: A car accelerates uniformly from rest at 3ms^-2. its velocity after traveling a distance of 24m is Options:
  A) 12ms^-1
  B) 144ms^-1
  C) 72ms^-1
  D) 36ms^-1
  Show Answer
  The correct answer is A .